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Dr Schaffner says: "The popular notion of this theory is that if food is picked up quickly, it’s safe to eat because bacteria need time to transfer.

"It can transfer to food in less than a second, depending on the type of surface the food was dropped on, the variety, and how much moisture it had.

“Bacteria don’t have legs, they move with the moisture, and the wetter the food, the higher the risk of transfer. Also, longer food contact times usually result in the transfer of more bacteria from each surface to food."

Keeping hold of that exfoliating shower pouf

They come in an array of colours, sizes and materials, hanging in bathrooms and placed on shower shelves up and down the country.

But you may want to throw yours out.

Why? Because the exfoliating shower puffs are, according to leading dermatologists, extremely bad news.

Shower pouf

An estimated 98 per cent of dermatologists would warn you against using them.

J. Matthew Knight, from the Knight Dermatology Institute, spoke to the New York Post and explained why these seemingly innocent shower accessories should be ditched for good.

By using them to exfoliate, dead skin cells nestle and get trapped in the copious amounts of netting.